Deploy your Flask app to Vercel
Step-by-step deployment help for Flask apps on Vercel. We fix Flask-specific deployment issues, configure Vercel, and get your app live. From $19.
Flask issues we fix before deploying
Common Flask problems that affect Vercel deployments.
Debug mode in production
Flask's built-in debugger left enabled in production, exposing an interactive console that allows remote code execution on the server.
Hardcoded secret key
SECRET_KEY set to a default or short string like 'secret' instead of a cryptographically random value loaded from environment variables.
No CSRF protection
Forms and state-changing endpoints without Flask-WTF CSRF tokens, enabling cross-site request forgery attacks.
Running with flask run in production
Using Flask's development server in production instead of gunicorn or uWSGI, which is single-threaded and not designed for real traffic.
Vercel deployment issues we check for
Common Vercel problems that break Flask apps in production.
Serverless function size exceeds 50MB limit
AI tools bundle heavy dependencies into API routes without tree-shaking, pushing serverless functions past Vercel's 50MB compressed size limit and failing the build.
Edge runtime incompatible with Node.js APIs
Generated code uses fs, crypto, or other Node.js built-ins inside Edge Runtime routes, causing deployment failures since Edge only supports a subset of Web APIs.
ISR revalidation not triggering correctly
Incremental Static Regeneration configured with stale revalidate values or missing on-demand revalidation hooks, serving outdated content indefinitely.
Environment variables missing in production
Secrets added to .env.local but not configured in the Vercel dashboard, causing runtime crashes only in production while working perfectly in local dev.
Start with a self-serve audit
Get a professional review of your Flask project before deploying to Vercel.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
How do I deploy a Flask app to Vercel?
We handle Flask deployments to Vercel end to end. Start with our code audit ($19) to identify deployment blockers specific to your Flask project, then we configure Vercel, fix issues, and get your app live in production.
What Flask issues affect Vercel deployments?
Flask projects commonly have debug mode in production and hardcoded secret key. On Vercel, these combine with serverless function size exceeds 50mb limit and edge runtime incompatible with node.js apis to cause deployment failures.
Can SpringCode deploy my Flask project to Vercel?
Yes. We specialize in deploying Flask applications to Vercel. We audit your codebase for Flask-specific issues, configure Vercel correctly, and handle the full deployment so your app runs reliably in production.
What does Flask deployment to Vercel cost?
Our code audit ($19) identifies all Vercel deployment blockers in your Flask project. Full deployment assistance is scoped with a fixed quote after the audit — no hourly billing or surprise charges.
Related resources
Other techs on Vercel
Deploy Flask elsewhere
Need help deploying Flask to Vercel?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.